Electroluminescence display

ABSTRACT

An electroluminescence display comprises transistor arrays, OLEDs, and power source lines. The transistor arrays are arranged in a first direction and a second direction intersecting the first direction. The OLEDs are electrically connected to the transistor arrays, and emit first, second and third colors. The power source lines apply power source voltage to the transistor arrays. The transistor arrays are disposed adjacently in the first direction to share one power source line positioned between the transistor arrays, and include a transistor array of an A type and a transistor array of a B type symmetrical to each other with respect to a reference line extended in the second direction. All the OLEDs emitting a light of any one of the first to third colors are connected to the transistor array of the A type. All the OLEDs emitting another of the first to third colors are connected to the transistor array of the B type.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of Korean PatentApplication No. 10-2018-0157043 filed on Dec. 7, 2018, which isincorporated herein by reference for all purposes as if fully set forthherein.

BACKGROUND Technical Field

The present disclosure relates to an electroluminescence display.

Description of the Related Art

Various display devices capable of reducing weight and volume, that is,disadvantages of the cathode ray tube, are developed. Such displaydevices may be implemented as a liquid crystal display (LCD), a fieldemission display (FED), a plasma display panel (PDP), anelectroluminescence display, etc.

Among these display devices, the electroluminescence display device isdivided into an inorganic light emitting diode display and an organiclight emitting diode (OLED) display depending on the material of thelight emitting layer. The OLED display is a self-emissive display devicethat emits light by exciting an organic compound, and has advantages inthat the display can have light weight and can be made thin because itdoes not require a backlight used in the LCD and that the process can besimplified. Furthermore, the OLED display can be fabricated at lowtemperature, and is widely used because it has a high response speed of1 ms or less and has characteristics, such as low consumption power, awide viewing angle, and high contrast.

The OLED display includes an organic light emitting diode (OLED) forchanging electrical energy into light energy. The OLED includes ananode, a cathode, and an organic emission layer positioned therebetween.In the OLED display, holes and electrons injected from the anode and thecathode, respectively, are combined in the emission layer to formexcitons. The formed excitons drop from an excited state to a groundstate, thus emitting and displaying an image.

An organic light-emitting display may include a transistor array fordriving pixels having OLEDs. The transistor array may be configured witha plurality of signal lines and electrodes disposed between at least oneinsulating layer interposed therebetween.

BRIEF SUMMARY

A failure in which a specific layer is shifted in one direction due to aprocess deviation in a process of forming a transistor array may occur.In this case, an electrical characteristic of pixels, such as thatparasitic capacitance within a pixel is changed, may be different, andthus poor picture quality may occur, which is problematic. The presentdisclosure provides an electroluminescence display having a minimumbrightness deviation or less brightness deviation between subpixelsattributable to a change in the electrical characteristic.

The present disclosure provides an electroluminescence display includestransistor arrays, OLEDs, and power source lines. The transistor arraysare arranged in a first direction and a second direction intersectingthe first direction. The OLEDs are electrically connected to thetransistor arrays, and emit lights of first, second and third colors.The power source lines apply power source voltages to the transistorarrays. The transistor arrays are disposed adjacently in the firstdirection to share one power source line positioned between thetransistor arrays, and include a transistor array of an A type and atransistor array of a B type symmetrical to each other with respect to areference line extended in the second direction. All the OLEDs emittinga light of any one of the first to third colors are connected to thetransistor array of the A type. All the OLEDs emitting another of thefirst to third colors are connected to the transistor array of the Btype.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the disclosure and are incorporated in and constitute apart of this specification, illustrate embodiments of the disclosure andtogether with the description serve to explain the principles of thedisclosure. In the drawings:

FIG. 1 is a block diagram schematically showing an organiclight-emitting display.

FIG. 2 is a circuit diagram schematically showing subpixels adjacent ina first direction.

FIGS. 3 and 4 schematically show an organic light-emitting displayaccording to a comparison example.

FIG. 5 is a diagram for illustrating problems of the organiclight-emitting display according to the comparison example.

FIGS. 6 and 7 illustrate an organic light-emitting display according toone or more embodiments of the present disclosure.

FIGS. 8 and 9 illustrate an organic light-emitting display according toone or more embodiments of the present disclosure.

FIGS. 10A and 10B schematically show the structure of transistor arraysaccording to an application example of the present disclosure.

FIGS. 11A and 11B schematically show connection relations betweentransistor arrays and OLEDs according to an application example of thepresent disclosure.

FIG. 12 illustrates a modified example of a first electrode.

DETAILED DESCRIPTION

Hereinafter, various embodiments of the present disclosure are describedwith reference to the accompanying drawings. Throughout thespecification, the same reference numeral substantially denotes the sameelement. In the following description, a detailed description of knowntechnology or element related to the present disclosure will be omittedif it is deemed to make the gist of the present disclosure unnecessarilyvague. In describing several embodiments, the same element isrepresentatively described at the introductory part of thisspecification, and may be omitted in other embodiments.

Terms including ordinal numbers, such as the first and the second, maybe used to describe various elements, but the elements are not limitedby the terms. The terms are used to only distinguish one element fromthe other element.

Hereinafter, an example in which an electroluminescence display isimplemented as an organic light-emitting display including an organiclight-emitting substance is described, for convenience of description.The technical spirit of the present disclosure is not limited to anorganic light-emitting display and may be applied to an inorganiclight-emitting display including an inorganic light-emitting substance.

FIG. 1 is a block diagram schematically showing an organiclight-emitting display. FIG. 2 is a circuit diagram schematicallyshowing subpixels adjacent in a first direction.

Referring to FIG. 1, the organic light-emitting display 10 according toone or more embodiments of the present disclosure includes a displaydriver circuit and a display panel DIS.

The display driver circuit includes a data driver circuit 12, a gatedriver circuit 14, and a timing controller 16 and writes (supplies) avideo data voltage of an input video in (to) subpixels of the displaypanel DIS. The data driver circuit 12 generates a data voltage byconverting digital video data (RGB), received from the timing controller16, into an analog gamma compensation voltage. The data voltage outputby the data driver circuit 12 is supplied to data lines D1˜Dm. The gatedriver circuit 14 selects subpixels of the display panel DIS in which adata voltage is written by sequentially supplying gate lines G1˜Gn witha gate signal synchronized with the data voltage.

The timing controller 16 receives timing signals, such as a verticalsync signal Vsync, a horizontal sync signal Hsync, a data enable signalDE, and a main clock MCLK, from a host system 19, and synchronizesoperating timing of the data driver circuit 12 and the gate drivercircuit 14. A data timing control signal for controlling the data drivercircuit 12 includes a source sampling clock (SSC), a source outputenable (SOE) signal, etc. A gate timing control signal for controllingthe gate driver circuit 14 includes a gate start pulse GSP, a gate shiftclock GSC, a gate output enable signal GOE, etc.

The host system 19 may be implemented as any one of a television system,a set-top box, a navigation system, a DVD player, a Blu-ray player, apersonal computer (PC), a home theater system, or a phone system. Thehost system 19 includes a system on chip (SoC) having a scaler embeddedtherein, and converts the digital video data (RGB) of an input videointo a format suitable for being displayed in the display panel DIS. Thehost system 19 transmits the timing signals (Vsync, Hsync, DE, MCLK) tothe timing controller 16 along with the digital video data.

The display panel DIS includes a plurality of subpixels arranged in afirst direction (e.g., X-axis direction) and a second direction (e.g.,Y-axis direction). The subpixels may be defined by the cross structuresof the data lines D1˜Dm (m is a positive integer) and the gate linesG1˜Gn (n is a positive integer), but are not limited thereto. Each ofthe subpixels includes an organic light emitting diode (OLED), that is,a self-emissive element.

Referring further to FIG. 2, each of the subpixels includes an OLED, adriving thin film transistor (TFT) (DTn, DTn+1) for controlling theamount of current flowing into the OLED (OLEn, OLEn+1), and aprogramming unit (SCn, SCn+1) for setting a gate-source voltage of thedriving TFT (DTn, DTn+1).

The programming unit (SCn, SCn+1) may include at least one switch TFTand at least one storage capacitor. The switch TFT is turned on inresponse to a gate signal from a gate line GL, thus applying a datavoltage from a data line (DLn, DLn+1) to one-side electrode of thestorage capacitor. The driving TFT (DTn, DTn+1) adjusts the amount ofemission of the OLED by controlling the amount of current, supplied tothe OLED, based on the amount of a voltage charged in the storagecapacitor. The amount of emission of the OLED is proportional to theamount of current supplied by the driving TFT (DTn, DTn+1). Such asubpixel is connected to a high potential voltage source EVDD and a lowpotential voltage source EVSS, and is supplied with a high potentialpower source voltage and a low potential power source voltage from apower source generator. TFTs configuring a subpixel may be implementedin a p type or may be implemented in an n type. Furthermore, thesemiconductor layer of TFTs configuring a subpixel may include amorphoussilicon, polysilicon, or oxide. Hereinafter, an example in which thesemiconductor layer includes oxide is described. The OLED (OLEn, OLEn+1)includes an anode ANO, a cathode CAT, and an organic compound layerinterposed between the anode ANO and the cathode CAT. The anode ANO isconnected to a driving TFT DT.

In each of the subpixels Pn and Pn+1 of the organic light-emittingdisplay, the electrical characteristics of the subpixels Pn and Pn+1,such as the threshold voltage Vth of the driving TFT (DTn, DTn+1), theelectron mobility (μ) of the driving TFT (DTn, DTn+1), a temperaturedeviation of the driving TFT (DTn, DTn+1), and the threshold voltage Vthof the OLED (OLEn, OLEn+1), are factors to determine the driving currentof the driving TFT (DTn, DTn+1), and thus they need to be the same inall the subpixels Pn and Pn+1. However, an electrical characteristic maybe different between the subpixels Pn and Pn+1 due to various causes,such as a process deviation of a transistor array and a change withtime. Such a deviation in the electrical characteristic of the subpixelsPn and Pn+1 may result in the degradation of picture quality (or, imagequality) and a reduction in lifespan. In order to reduce the degradationof the subpixels Pn and Pn+1 and to extend the lifespan, an internalcompensation circuit or an external compensation circuit may be applied.

The internal compensation circuit is positioned in each of the subpixelsPn and Pn+1, and compensates for a gate voltage of the driving TFT (DTn,DTn+1) as much as the threshold voltage of the driving TFT (DTn, DTn+1)by sampling the threshold voltage.

The external compensation circuit compensates for an electricalcharacteristic deviation and deterioration between the subpixels Pn andPn+1 by sensing an electrical characteristic of the subpixels Pn andPn+1 through a sensing path connected to the subpixels Pn and Pn+1 andmodulating the pixel data Vdata of an input video based on a result ofthe sensing. The external compensation circuit may sense one or more ofthe threshold voltage Vth of the driving TFT (DTn, DTn+1), the electronmobility (μ) of the driving element DT, a temperature deviation of thedriving element DT, or the threshold voltage Vth of the OLED (OLEn,OLEn+1) in each of the subpixels Pn and Pn+1, and may transmit a resultof the sensing to the timing controller 16.

The subpixels Pn and Pn+1 adjacent in the first direction share one highpotential power source line EVL crossing between the subpixels. The highpotential power source line EVL may extend in the second direction. Forexample, as shown in FIG. 2, the n-th subpixel Pn and the (n+1)-thsubpixel Pn+1 may be disposed adjacently in the first direction. Thehigh potential power source line EVL may be positioned between the n-thsubpixel Pn and the (n+1)-th subpixel Pn+1k, and may supply a highpotential power source voltage to the n-th subpixel Pn and the (n+1)-thsubpixel Pn+1. The organic light-emitting display according to one ormore embodiments of the present disclosure can reduce the number of highpotential power source lines EVL compared to a conventional technologybecause the subpixels Pn and Pn+1 adjacent in the first direction sharethe high potential power source line EVL. Accordingly, there is anadvantage in that a high-resolution display can be implemented becausethe interval between the adjacent subpixels Pn and Pn+1 can be reduced.

Comparison Example

FIGS. 3 and 4 schematically show an organic light-emitting displayaccording to a comparison example.

Referring to FIGS. 3 and 4, the organic light-emitting display accordingto the comparison example includes a plurality of subpixels arranged inthe first direction and the second direction. Subpixels adjacent in thefirst direction share a high potential power source line EVL. The highpotential power source line EVL may extend in the second direction.

For example, the subpixels include a first subpixel P1, a secondsubpixel P2, a third subpixel P3, a fourth subpixel P4, a fifth subpixelP5, and a sixth subpixel P6 sequentially arranged in the firstdirection.

Each of the subpixels P includes a transistor array TA and an OLED OLE.The transistor array TA may include the programming unit SC and thedriving TFT DT shown in FIG. 2.

For example, the first subpixel P1 includes a first transistor array TA1and a first OLED OLE1. The second subpixel P2 includes a secondtransistor array TA2 and a second OLED OLE2. The third subpixel P3includes a third transistor array TA3 and a third OLED OLE3. The fourthsubpixel P4 includes a fourth transistor array TA4 and a fourth OLEDOLE4. The fifth subpixel P5 includes a fifth transistor array TA5 and afifth OLED OLE5. The sixth subpixel P6 includes a sixth transistor arrayTA6 and a sixth OLED OLE6.

The structures of the transistor arrays TA adjacent in the firstdirection have a line symmetry relation with respect to a virtualreference line extended in the second direction. For example, the firsttransistor array TA1 and the second transistor array TA2 have planestructures symmetrical to each other with respect to a first highpotential power source line EVL1. The third transistor array TA3 and thefourth transistor array TA4 have plane structures symmetrical to eachother with respect to a second high potential power source line EVL2.The fifth transistor array TA5 and the sixth transistor array TA6 haveplane structures symmetrical to each other with respect to a third highpotential power source line EVL3.

Accordingly, the first transistor array TA1, the third transistor arrayTA3, and the fifth transistor array TA5 have an A type plane structure.The second transistor array TA2, the fourth transistor array TA4, andthe sixth transistor array TA6 have a B type plane structure symmetricalto the A type plane structure. That is, the A type transistor array andthe B type transistor array may be sequentially arranged alternately inthe first direction.

The first transistor array TA1 and the second transistor array TA2 sharethe first high potential power source line EVL1 positioned between thefirst transistor array TA1 and the second transistor array TA2. Thethird transistor array TA3 and the fourth transistor array TA4 share thesecond high potential power source line EVL2 positioned between thethird transistor array TA3 and the fourth transistor array TA4. Thefifth transistor array TA5 and the sixth transistor array TA6 share thethird high potential power source line EVL3 positioned between the fifthtransistor array TA5 and the sixth transistor array TA6.

First and fourth OLEDs OLE1 and OLE4 emit light of a first color. Secondand fifth OLEDs OLE2 and OLE5 emit light of a second color. Third andsixth OLEDs OLE3 and OLE6 emit light of a third color. The first colormay be assigned as red (R), the second color may be assigned as green(G), and the third color may be assigned as blue (B), but are notlimited thereto.

In the comparison example, the OLEDs emitting the light of the firstcolor may be alternately matched with the A type transistor arrays andthe B type transistor arrays. The OLEDs emitting the light of the secondcolor may be alternately matched with the B type transistor arrays TA2and the A type transistor arrays TA5. The OLEDs emitting the light ofthe third color may be alternately matched with the A type transistorarrays and the B type transistor arrays.

For example, as shown in FIG. 3, the first OLED OLE1 emitting the lightof the first color may be electrically connected to the first transistorarray TA1 of the A type, and the fourth OLED OLE4 emitting the light ofthe first color may be electrically connected to the fourth transistorarray TA4 of the B type. The second OLED OLE2 emitting the light of thesecond color may be electrically connected to the second transistorarray TA2 of the B type, and the fifth OLED OLE5 emitting the light ofthe second color may be electrically connected to the fifth transistorarray TA5 of the A type. The third OLED OLE3 emitting the light of thethird color may be electrically connected to the third transistor arrayTA3 of the A type, and the sixth OLED OLE6 emitting the light of thethird color may be electrically connected to the sixth transistor arrayTA6 of the B type.

In this case, the first transistor array TA1 is supplied with a firstdata voltage Vdata(R)_1, and turns on the first OLED OLE1 electricallyconnected thereto in response to a corresponding gate signal. The secondtransistor array TA2 is supplied with a second data voltage Vdata(G)_1,and turns on the second OLED OLE2 electrically connected thereto inresponse to a corresponding gate signal. The third transistor array TA3is supplied with a third data voltage Vdata(B)_1, and turns on the thirdOLED OLE3 electrically connected thereto in response to a correspondinggate signal.

The fourth transistor array TA4 is supplied with a fourth data voltageVdata(R)_2, and turns on the fourth OLED OLE4 electrically connectedthereto in response to a corresponding gate signal. The fifth transistorarray TA5 is supplied with a fifth data voltage Vdata(G)_2, and turns onthe fifth OLED OLE5 electrically connected thereto in response to acorresponding gate signal. The sixth transistor array TA6 is suppliedwith a sixth data voltage Vdata(B)_2, and turns on the sixth OLED OLE6electrically connected thereto in response to a corresponding gatesignal.

FIG. 5 is a diagram for illustrating problems of the organiclight-emitting display according to the comparison example.

A failure in which a specific layer is shifted in one direction due to aprocess deviation may occur in a process of forming a transistor array.In this case, an electrical characteristics of subpixels, such as thatparasitic capacitance within a subpixel is changed, may be different.

More specifically, referring to FIG. 5, dotted lines schematically showthe shape of patterns PTN1, PTN2, PTN3, PTN4, PTN5, and PTN6 on a planeif a specific layer has been in place. Solid lines schematically showthe shape of patterns PTN1′, PTN2′, PTN3′, PTN4′, PTN5′, and PTN6′ on aplane if a specific layer has been shifted due to a process deviation.The specific layer may be at least one of layers configuring atransistor, for example, a gate electrode, a source/drain electrode or asemiconductor layer, but is not limited thereto.

If a specific layer has been shifted in one direction, the patternsPTN1′, PTN3′, and PTN5′ of the A type are shifted in a (−) directionthat becomes close to a high potential power source line EVL withrespect to the high potential power source line EVL, and the patternsPTN2′, PTN4′, and PTN6′ of the B type are shifted in a (+) directionthat becomes distant from the high potential power source line EVL.Accordingly, in the A type transistor arrays TA1, TA3, and TA5 and the Btype transistor arrays TA2, TA4, and TA6, a difference between thechanges of electrical characteristics is great. For example, if aspecific layer is shifted, in the A type transistor arrays TA1, TA3, andTA5 and the B type transistor arrays TA2, TA4, and TA6, a difference ofthe overlap area between the specific layer and a data line occurs.Parasitic capacitance may be different due to such a difference.

Due to the above-described structural characteristic, when the same datavoltage Vdata(R) is applied, driving currents flowing into the drivingtransistor of the first transistor array TA1 of the A type and thedriving transistor of the fourth transistor array TA4 of the B type maybe greatly different. Accordingly, poor picture quality attributable toa brightness deviation between subpixels that emit the first color maybe caused because brightness implemented in the first OLED OLE1 andbrightness implemented in the fourth OLED OLE4 are different due to adeviation between the driving currents.

Furthermore, when the same data voltage Vdata(G) is applied, drivingcurrents flowing into the driving transistor of the second transistorarray TA2 of the B type and the driving transistor of the fifthtransistor array TA5 of the A type may be greatly different.Accordingly, poor picture quality attributable to a brightness deviationbetween subpixels that emit the second color may be caused betweenbrightness implemented in the second OLED OLE2 and brightnessimplemented in the fifth OLED OLE5 are different due to a deviationbetween the driving currents.

Furthermore, when the same data voltage Vdata(B) is applied, drivingcurrents flowing into the driving transistor of the third transistorarray TA3 of the A type and the driving transistor of the sixthtransistor array TA6 of the B type may be greatly different.Accordingly, poor picture quality attributable to a brightness deviationbetween subpixels that emit the third color may be caused becausebrightness implemented in the third OLED OLE3 and brightness implementedin the sixth OLED OLE6 are different due to a deviation between thedriving currents.

That is, color distortion attributable to a brightness deviation betweensubpixels that displays the same color is recognized to a user as astain, which is problematic because it significantly degrades displayquality.

FIGS. 6 and 7 illustrate an organic light-emitting display according toone or more embodiments of the present disclosure.

Referring to FIGS. 6 and 7, the organic light-emitting display includesa plurality of subpixels arranged in a first direction and a seconddirection. Subpixels adjacent in the first direction share a highpotential power source line EVL. The high potential power source lineEVL may extend in the second direction.

For example, the subpixels include a first subpixel P1, a secondsubpixel P2, a third subpixel P3, a fourth subpixel P4, a fifth subpixelP5, and a sixth subpixel P6 sequentially arranged in the firstdirection.

Each of the subpixels P includes a transistor array TA and an OLED OLE.The transistor array TA may include the programming unit SC and thedriving TFT DT shown in FIG. 2.

For example, the first subpixel P1 includes a first transistor array TA1and a first OLED OLE1. The second subpixel P2 includes a secondtransistor array TA2 and a second OLED OLE2. The third subpixel P3includes a third transistor array TA3 and a third OLED OLE3. The fourthsubpixel P4 includes a fourth transistor array TA4 and a fourth OLEDOLE4. The fifth subpixel P5 includes a fifth transistor array TA5 and afifth OLED OLE5. The sixth subpixel P6 includes a sixth transistor arrayTA6 and a sixth OLED OLE6.

The structures of transistor arrays adjacent in the first direction havea line symmetry relation with respect to a virtual reference lineextended in the second direction. For example, the first transistorarray TA1 and the second transistor array TA2 have plane structuressymmetrical to each other with respect to a first high potential powersource line EVL1. The third transistor array TA3 and the fourthtransistor array TA4 have plane structures symmetrical to each otherwith respect to a second high potential power source line EVL2. Thefifth transistor array TA5 and the sixth transistor array TA6 have planestructures symmetrical to each other with respect to a third highpotential power source line EVL3.

Accordingly, the first transistor array TA1, the third transistor arrayTA3, and the fifth transistor array TA5 have an A type plane structure.The second transistor array TA2, the fourth transistor array TA4, andthe sixth transistor array TA6 have a B type plane structure symmetricalto the A type plane structure. That is, the A type transistor array andthe B type transistor array may be sequentially arranged alternately inthe first direction.

The first transistor array TA1 and the second transistor array TA2 sharea first high potential power source line EVL1 positioned between thefirst transistor array TA1 and the second transistor array TA2. Thethird transistor array TA3 and the fourth transistor array TA4 share asecond high potential power source line EVL2 positioned between thethird transistor array TA3 and the fourth transistor array TA4. Thefifth transistor array TA5 and the sixth transistor array TA6 share athird high potential power source line EVL3 positioned between the fifthtransistor array TA5 and the sixth transistor array TA6.

The first and the fourth OLEDs OLE1 and OLE4 emit light of a firstcolor. The second and the fifth OLEDs OLE2 and OLE5 emit light of asecond color. The third and the sixth OLEDs OLE3 and OLE6 emit light ofa third color. The first color may be assigned as red (R), the secondcolor may be assigned as green (G), and the third color may be assignedas blue (B), but are not limited thereto.

In one or more embodiments of the present disclosure, OLEDs emitting thelight of the first color may be matched with the A type transistorarrays, and OLEDs emitting the light of the second color may be matchedwith the B type transistor arrays.

For example, as shown in FIG. 6, the first OLED OLE1 emitting the lightof the first color may be electrically connected to the first transistorarray TA1 of the A type, and the fourth OLED OLE4 emitting the light ofthe first color may be electrically connected to the fifth transistorarray TA5 of the A type. The second OLED OLE2 emitting the light of thesecond color may be electrically connected to the second transistorarray TA2 of the B type, and the fifth OLED OLE5 emitting the light ofthe second color may be electrically connected to the fourth transistorarray TA4 of the B type. In this case, the third OLED OLE3 emitting thelight of the third color may be electrically connected to the thirdtransistor array TA3 of the A type, and the sixth OLED OLE6 emitting thelight of the third color may be connected to the sixth transistor arrayTA6 of the B type.

In this case, the first transistor array TA1 is supplied with a firstdata voltage Vdata(R)_1, and turns on the first OLED OLE1 electricallyconnected thereto in response to a corresponding gate signal. The secondtransistor array TA2 is supplied with a second data voltage Vdata(G)_1,and turns on the second OLED OLE2 electrically connected thereto inresponse to a corresponding gate signal. The third transistor array TA3is supplied with a third data voltage Vdata(B)_1, and turns on the thirdOLED OLE3 electrically connected thereto in response to a correspondinggate signal.

The fourth transistor array TA4 is supplied with a fifth data voltageVdata(G)_2, and turns on the fifth OLED OLE5 electrically connectedthereto through the first auxiliary signal line 61 in response to acorresponding gate signal. The fifth transistor array TA5 is suppliedwith a fourth data voltage Vdata(R)_2, and turns on the fourth OLED OLE4electrically connected thereto through the second auxiliary signal line62 in response to a corresponding gate signal. The sixth transistorarray TA6 is supplied with a sixth data voltage Vdata(B)_2, and turns onthe sixth OLED OLE6 electrically connected thereto in response to acorresponding gate signal.

In one or more embodiments of the present disclosure, unlike in thecomparison example, both the OLEDs OLE1 and OLE4 emitting the light ofthe first color are connected to the transistor arrays TA1 and TA5 ofthe same A type, respectively. Accordingly, although a specific layer isshifted in one direction due to a process deviation, a brightnessdeviation between subpixels emitting the light of the first color can bereduced or minimized because a change in the electrical characteristicsof the A type transistor arrays TA1 and TA5 connected to the OLEDs OLE1and OLE4 emitting the light of the first color is substantially thesame.

Furthermore, in one or more embodiments of the present disclosure, boththe OLEDs OLE2 and OLE5 emitting the light of the second color areconnected to the transistor arrays TA2 and TA4 of the same B type,respectively. Accordingly, although a specific layer is shifted in onedirection due to a process deviation, a brightness deviation betweensubpixels emitting the light of the second color can be reduced orminimized because a change in the electrical characteristics of the Btype transistor arrays connected to the OLEDs OLE2 and OLE5 emitting thesecond color is substantially the same.

The OLEDs OLE3 and OLE6 emitting the light of the third color areconnected to the transistor arrays TA3 and TA6 of different types,respectively. Accordingly, if a specific layer is shifted in onedirection, the above-described problem may occur. In order to reduce orminimize a failure attributable to the problem, the third color may beselected by taking into consideration a user's perception level. Forexample, the third color may be set as blue having a lower userperception level than red or green when a brightness deviation occurs.

FIGS. 8 and 9 illustrate an organic light-emitting display according toone or more embodiments of the present disclosure.

Referring to FIGS. 8 and 9, the organic light-emitting display includesa plurality of subpixels arranged in a first direction and a seconddirection. Subpixels adjacent in the first direction share a highpotential power source line EVL. The high potential power source lineEVL may extend in the second direction.

For example, the subpixels include a first subpixel P1, a secondsubpixel P2, a third subpixel P3, a fourth subpixel P4, a fifth subpixelP5, a sixth subpixel P6 sequentially arranged in the first direction.

Each of the subpixels P includes a transistor array TA and an OLED OLE.The transistor array TA may include the programming unit SC and thedriving TFT DT shown in FIG. 2.

For example, the first subpixel P1 includes a first transistor array TA1and a first OLED OLE1. The second subpixel P2 includes a secondtransistor array TA2 and a second OLED OLE2. The third subpixel P3includes a third transistor array TA3 and a third OLED OLE3. The fourthsubpixel P4 includes a fourth transistor array TA4 and a fourth OLEDOLE4. The fifth subpixel P5 includes a fifth transistor array TA5 and afifth OLED OLE5. The sixth subpixel P6 includes a sixth transistor arrayTA6 and a sixth OLED OLE6.

The structures of transistor arrays adjacent in the first direction havea line symmetry relation with respect to a virtual reference lineextended in the second direction. For example, the first transistorarray TA1 and the second transistor array TA2 have plane structuressymmetrical to each other with respect to a first high potential powersource line EVL1. The third transistor array TA3 and the fourthtransistor array TA4 have plane structures symmetrical to each otherwith respect to a second high potential power source line EVL2. Thefifth transistor array TA5 and the sixth transistor array TA6 have planestructures symmetrical to each other with respect to a third highpotential power source line EVL3.

Accordingly, the first transistor array TA1, the third transistor arrayTA3, and the fifth transistor array TA5 have an A type plane structure.The second transistor array TA2, the fourth transistor array TA4, andthe sixth transistor array TA6 have a B type plane structure symmetricalto the A type plane structure. That is, the A type transistor array andthe B type transistor array may be sequentially arranged alternately inthe first direction.

The first transistor array TA1 and the second transistor array TA2 sharea first high potential power source line EVL1 positioned between thefirst transistor array TA1 and the second transistor array TA2. Thethird transistor array TA3 and the fourth transistor array TA4 share asecond high potential power source line EVL2 positioned between thethird transistor array TA3 and the fourth transistor array TA4. Thefifth transistor array TA5 and the sixth transistor array TA6 share athird high potential power source line EVL3 positioned between the fifthtransistor array TA5 and the sixth transistor array TA6.

The first and the fourth OLEDs OLE1 and OLE4 emit light of a firstcolor. The second and the fifth OLEDs OLE2 and OLE5 emit light of asecond color. The third and the sixth OLEDs OLE3 and OLE6 emit light ofa third color. The first color may be assigned as red (R), the secondcolor may be assigned as green (G), and the third color may be assignedas blue (B), but are not limited thereto.

In one or more embodiments of the present disclosure, OLEDs emitting thelight of the second color may be matched with the B type transistorarrays, and OLEDs emitting the light of the third color may be matchedwith the A type transistor arrays.

For example, as shown in FIG. 8, the second OLED OLE2 emitting the lightof the second color may be electrically connected to the secondtransistor array TA2 of the B type, and the fifth OLED OLE5 emitting thelight of the second color may be electrically connected to the sixthtransistor array TA6 of the B type. The third OLED OLE3 emitting thelight of the third color may be electrically connected to the thirdtransistor array TA3 of the A type. The sixth OLED OLE6 emitting thelight of the third color may be electrically connected to the fifthtransistor array TA5 of the A type. In this case, the first OLED OLE1emitting the light of the first color may be electrically connected tothe first transistor array TA1 of the A type, and the fourth OLED OLE4emitting the light of the first color may be electrically connected tothe fourth transistor array TA4 of the B type.

In this case, the first transistor array TA1 is supplied with a firstdata voltage Vdata(R)_1, and turns on the first OLED OLE1 electricallyconnected thereto in response to a corresponding gate signal. The secondtransistor array TA2 is supplied with a second data voltage Vdata(G)_1,and turns on the second OLED OLE2 electrically connected thereto inresponse to a corresponding gate signal. The third transistor array TA3is supplied with a third data voltage Vdata(B)_1, and turns on the thirdOLED OLE3 electrically connected thereto in response to a correspondinggate signal.

The fourth transistor array TA4 is supplied with a fourth data voltageVdata(R)_2, and turns on the fourth OLED OLE4 electrically connectedthereto in response to a corresponding gate signal. The fifth transistorarray TA5 is supplied with a sixth data voltage Vdata(B)_2, and turns onthe sixth OLED OLE6 electrically connected thereto through the firstauxiliary signal line 81 in response to a corresponding gate signal. Thesixth transistor array TA6 is supplied with a fifth data voltageVdata(G)_2, and turns on the sixth OLED OLE6 electrically connectedthereto through the second auxiliary signal line 82 in response to acorresponding gate signal.

In one of more embodiments of the present disclosure, unlike in thecomparison example, both the OLEDs OLE2 and OLE5 emitting the light ofthe second color are connected to the transistor arrays TA2 and TA6 ofthe same B type, respectively. Accordingly, although a specific layer isshifted in one direction due to a process deviation, a brightnessdeviation between subpixels emitting the light of the second color canbe reduced or minimized because a change in the electricalcharacteristics of the B type transistor arrays TA2 and TA6 connected tothe OLEDs OLE2 and OLE5 emitting the second color is substantially thesame.

Furthermore, in one or more embodiments of the present disclosure, boththe OLEDs OLE3 and OLE6 emitting the light of the third color areconnected to the transistor arrays TA3 and TA5 of the same A type,respectively. Accordingly, although a specific layer is shifted in onedirection due to a process deviation, a brightness deviation betweensubpixels emitting the light of the third color can be reduced orminimized because a change in the electrical characteristics of the Atype transistor arrays TA3 and TA5 connected to the OLEDs OLE3 and OLE6emitting the third color is substantially the same.

Application Example

Hereinafter, a detailed application example of one or more embodimentsof the present disclosure is described with reference to FIGS. 10 and11. FIGS. 10A and 10B schematically show the structure of transistorarrays according to an application example of the present disclosure.FIGS. 11A and 11B schematically show connection relations betweentransistor arrays and OLEDs according to an application example of thepresent disclosure. FIG. 12 illustrates a modified example of a firstelectrode.

Referring to FIGS. 10A and 10B, an OLED display according to the presentdisclosure includes gate lines GL extended in a first direction and datalines DL1, DL2, DL3, DL4, DL5, and DL6 extended in a second direction. Afirst region R1, a second region R2, a third region R3, a fourth regionR4, a fifth region R5, and a sixth region R6 may be defined by theintersection structures of the gate lines GL and the data lines DL1,DL2, DL3, DL4, DL5, and DL6. The first region R1, the second region R2,the third region R3, the fourth region R4, the fifth region R5, thesixth region R6 may be sequentially arranged alternately in the firstdirection.

A first transistor array TA1 is formed in the first region R1. A secondtransistor array TA2 is formed in the second region R2. A thirdtransistor array TA3 is formed in the third region R3. A fourthtransistor array TA4 is formed in the fourth region R4. A fifthtransistor array TA5 is formed in the fifth region R5. A sixthtransistor array TA6 is formed in the sixth region R6.

The first transistor array TA1 and the second transistor array TA2 haveplane structures symmetrical to each other with respect to a first highpotential power source line EVL1 extended in the second direction. Thethird transistor array TA3 and the fourth transistor array TA4 haveplane structures symmetrical to each other with respect to a second highpotential power source line EVL2 extended in the second direction. Thefifth transistor array TA5 and the sixth transistor array TA6 have planestructures symmetrical to each other with respect to a third highpotential power source line EVL3 extended in the second direction.

The first to sixth transistor arrays TA1, TA2, TA3, TA4, TA5, and TA6include TFTs. Each of the TFTs may include a switching TFT ST and adriving TFT DT connected to the switching TFT ST. The transistor isillustrated as being a bottom gate type TFT, but is not limited theretoand may be implemented as various structures, such as a top gate typeand a double gate type.

For example, a driving TFT DT connected to a switching TFT ST is formedon the substrate SUB of an organic light-emitting display. The switchingTFT ST includes a switching gate electrode SG, a switching semiconductorlayer SA, and switching source/drain electrodes SS and SD. The drivingTFT DT includes a driving gate electrode DG, a driving semiconductorlayer DA, and driving source/drain electrodes DS and DD.

More specifically, the switching gate electrode SG and the driving gateelectrode DG are formed on the substrate SUB. A gate insulating film GIis formed on the gate electrodes SG and DG. The switching semiconductorlayer SA overlapping at least part of the switching gate electrode SGand the driving semiconductor layer DA overlapping at least part of thedriving gate electrode DG are formed on the gate insulating film G1.

The source electrode SS, DS and the drain electrode SD, DD spaced apartat a given interval are formed on the semiconductor layers SA and DA.One side of the switching semiconductor layer SA comes into contact withthe switching source electrode SS, and the other side thereof comes intocontact with the switching drain electrode SD. One side of the drivingsemiconductor layer DA comes into contact with the driving sourceelectrode DS, and the other side thereof comes into contact with thedriving drain electrode DD. The switching drain electrode SD and thedriving gate electrode DG may be electrically connected.

A protection layer is formed on the source/drain electrodes SS, DS, SD,and DD. The protection layer may include at least one of a passivationfilm PAS made of an inorganic substance or a planarization film OC madeof an organic substance. A pixel contact hole PH through which thedriving drain electrode DD is exposed is formed in the protection layer.

Referring to FIGS. 11A and 11B, an OLED display according to anapplication example includes a first OLED OLE1, a second OLED OLE2, athird OLED OLE3, a fourth OLED OLE4, a fifth OLED OLE5, and a sixth OLEDOLE6. The first and the fourth OLEDs OLE1 and OLE4 emit light of thefirst color. The second and the fifth OLEDs OLE2 and OLE5 emit light ofthe second color. The third and the sixth OLEDs OLE3 and OLE6 emit lightof the third color.

Each of the OLEDs includes a first electrode 10, 20, 30, a secondelectrode 50, and an organic compound layer 40 interposed between thefirst electrode 10, 20, 30 and the second electrode 50. The firstelectrode 10, 20, 30 may be an anode, and the second electrode 50 may bea cathode.

More specifically, the first electrode 10, 20, 30 is formed on aprotection layer. Each of the first electrodes 10, 20, and 30 iselectrically connected to the driving drain electrode DD of acorresponding transistor array through a pixel contact hole thatpenetrates a protection layer.

The first electrode 10 of the first, fourth OLED OLE1, OLE4 emitting thefirst color may have a plane shape of a triangle having three sides.That is, the first electrode 10 of the first, fourth OLED OLE1, OLE4 mayhave a first side 10 a parallel to the first direction, a second side 10b bent and extended from one end of the first side 10 a, and a thirdside 10 c bent and extended from the other end of the first side 10 aand connected to the second side 10 b. An angle formed by the first side10 a and the second side 10 b and an angle formed by the first side 10 aand the third side 10 c may be the same.

The first electrode 20 of the second, fifth OLED OLE2, OLE5 emitting thelight of the second color may have a plane shape of a triangle havingthree sides. That is, the first electrode 20 of the second, fifth OLEDOLE2, OLE5 may have a fourth side 20 a parallel to the first direction,a fifth side 20 b bent and extended from one end of the fourth side 20a, and a sixth side 20 c bent and extended from the other end of thefourth side 20 a and connected to the fifth side 20 b. An angle formedby the fourth side 20 a and the fifth side 20 b and an angle formed bythe fourth side 20 a and the sixth side 20 c may be the same. The firstelectrode 20 of the second, fifth OLED OLE2, OLE5 may have a plane shapesymmetrical to the plane shape of the first electrode 10 of the first,fourth OLED OLE1. OLE4 with respect to a virtual line extended in thefirst direction.

The first electrode 30 of the third, sixth OLED OLE3, OLE6 emitting thelight of the third color may have a plane shape of a rectangle havingfour sides. That is, the first electrode 30 of the third, sixth OLEDOLE3, OLE6 may have a seventh side 30 a making an acute angle (0) with avirtual line extended in the second direction, an eighth side 30 b bentand extended from one end of the seventh side 30 a and symmetrical tothe seventh side 30 a up and down with respect to an X axis (e.g., theeighth side 30 b disposed symmetrical with the seventh side 30 a), aninth side 30 c bent and extended from the other end of the seventh side30 a and being parallel to the eighth side 30 b, and a tenth side 30 dconnected to the eighth side 30 b and the ninth side and parallel to theseventh side 30 a.

The seventh side 30 a may be parallel to the third side 10 c adjacent tothe seventh side. The eighth side 30 b may be parallel to the sixth side20 c adjacent to the eighth side. In this case, the third side 10 c andthe seventh side 30 a are spaced apart, and the sixth side 20 c and theeighth side 30 b are spaced apart, and may have a minimum distance or adistance based on a process margin.

The first electrode 10 of the first OLED OLE1 may be widely formed onthe first transistor array TA1 and the second transistor array TA2. Thefirst electrode 10 of the first OLED OLE1 is connected to the drainelectrode of the first transistor array TA1 through a first connectionpart 10-1. The first connection part 10-1 is a part extended from oneside of the first electrode 10.

The first electrode 20 of the second OLED OLE2 may be widely formed onthe first transistor array TA1 and the second transistor array TA2. Thefirst electrode 20 of the second OLED OLE2 is connected to the drainelectrode of the second transistor array TA2 through a second connectionpart 20-1. The second connection part 20-1 is a part extended from oneside of the first electrode 20, and traverses the space between thefirst electrode 10 of the first OLED OLE1 and the first electrode 30 ofthe third OLED OLE3.

The first electrode 30 of the third OLED OLE3 may be widely formed onthe second transistor array TA2, the third transistor array TA3, and thefourth transistor array TA4. The first electrode 30 of the third OLEDOLE3 is connected to the drain electrode of the third transistor arrayTA3 through a third connection part 30-1. The third connection part 30-1is a part extended from one side of the first electrode 30.

The first electrode 10 of the fourth OLED OLE4 may be widely formed onthe fourth transistor array TA4 and the fifth transistor array TA5. Thefirst electrode 10 of the fourth OLED OLE4 is connected to the drainelectrode of the fifth transistor array TA5 through a fourth connectionpart 10-2. The fourth connection part 10-2 is a part extended from oneside of the first electrode 10.

The first electrode 20 of the fifth OLED OLE5 may be widely formed onthe fourth transistor array TA4 and the fifth transistor array TA5. Thefirst electrode 20 of the fifth OLED OLE5 is connected to the drainelectrode of the fourth transistor array TA4 through a fifth connectionpart 20-2. The fifth connection part 20-2 is a part extended from oneside of the first electrode 20, and traverses the space between thefirst electrode 30 of the third OLED OLE3 and the first electrode 10 ofthe fourth OLED OLE4.

The first electrode 30 of the sixth OLED OLE6 may be widely formed onthe fifth transistor array TA5, the sixth transistor array TA6, and thefirst transistor array TA1. The first electrode 30 of the sixth OLEDOLE6 is connected to the drain electrode of the sixth transistor arrayTA6 through a sixth connection part 30-2. The sixth connection part 30-2is a part extended from one side of the first electrode 30.

For another example, as shown in FIG. 12, the first electrode 10, 20, 30may have a plane shape having at least one-side edge chamfered.

The first electrode of the first OLED OLE1 is electrically connected tothe driving drain electrode of the first transistor array TA1 and issupplied with a driving signal. The first electrode of the second OLEDOLE2 is electrically connected to the driving drain electrode of thesecond transistor array TA2 and is supplied with a driving signal. Thefirst electrode of the third OLED OLE3 is electrically connected to thedriving drain electrode of the third transistor array TA3 and issupplied with a driving signal. The first electrode of the fourth OLEDOLE4 is electrically connected to the driving drain electrode of thefifth transistor array TA5 and is supplied with a driving signal. Thefirst electrode of the fifth OLED OLE5 is electrically connected to thedriving drain electrode of the fourth transistor array TA4 and issupplied with a driving signal. The first electrode of the sixth OLEDOLE6 is electrically connected to the driving drain electrode of thesixth transistor array TA6 and is supplied with a driving signal.

A bank BN is formed on a substrate SUB in which the first electrode 10,20, 30 have been formed. The bank BN includes openings through which atleast a part of the first electrode 10, 20, 30 is exposed, and part ofthe first electrode 10, 20, 30 exposed by the openings may be defined asa light-emitting region.

An organic compound layer OL is formed on the first electrode 10, 20,30. The organic compound layer OL includes an emission layer EML, andmay further include any one or more of common layers, such as a holeinjection layer HIL, a hole transport layer HTL, an electron transportlayer ETL, and an electron injection layer EIL.

A second electrode 50 is formed on the organic compound layer OL. Thesecond electrode 50 may be widely formed on the entire surface of thesubstrate SUB.

Those skilled in the art will understand that the present disclosure maybe changed and modified in various ways without departing from thetechnical spirit of the present disclosure through the above-describedcontents.

The various embodiments described above can be combined to providefurther embodiments. Further changes can be made to the embodiments inlight of the above-detailed description. In general, in the followingclaims, the terms used should not be construed to limit the claims tothe specific embodiments disclosed in the specification and the claims,but should be construed to include all possible embodiments along withthe full scope of equivalents to which such claims are entitled.Accordingly, the claims are not limited by the disclosure.

What is claimed is:
 1. An electroluminescence display, comprising:transistor arrays arranged in a first direction and a second directionintersecting the first direction; organic light-emitting diodes (OLEDs)electrically connected to the transistor arrays to emit light of a firstcolor, a second color, and a third color; and power source lines toapply power source voltages to the transistor arrays, wherein thetransistor arrays are disposed adjacently in the first direction andshare one power source line positioned between the transistor arrays,and wherein the transistor arrays include a transistor array of an Atype and a transistor array of a B type symmetrical to each other withreference to a reference line extended in the second direction, whereinthe OLEDs are arranged in an order of a first OLED of the first color, asecond OLED of the second color, a third OLED of the third color, afourth OLED of the first color, a fifth OLED of the second color, and asixth OLED of the third color, and wherein the transistor arrays arearranged in an order of a first transistor array of the A type, a secondtransistor array of the B type, a third transistor array of the A type,a fourth transistor array of the B type, a fifth transistor array of theA type, and a sixth transistor array of the B type in the firstdirection, wherein the first OLED is electrically connected to the firsttransistor array, the second OLED is electrically connected to thesecond transistor array, and the third OLED is electrically connected tothe third transistor array; and wherein the fourth OLED is electricallyconnected to the fifth transistor array, the fifth OLED is electricallyconnected to the fourth transistor array, and the sixth OLED iselectrically connected to the sixth transistor array; or wherein thefourth OLED is electrically connected to the fourth transistor array,the fifth OLED is electrically connected to the sixth transistor array,and the sixth OLED is electrically connected to the fifth transistorarray.
 2. The electroluminescence display of claim 1, wherein: the firsttransistor array is supplied with a first data voltage of the firstcolor and turns on the first OLED electrically connected to the firsttransistor array; the second transistor array is supplied with a seconddata voltage of the second color and turns on the second OLEDelectrically connected to the second transistor array; the thirdtransistor array is supplied with a third data voltage of the thirdcolor and turns on the third OLED electrically connected to the thirdtransistor array; the fourth transistor array is supplied with a fourthdata voltage of the second color and turns on the fifth OLEDelectrically connected to the fourth transistor array; the fifthtransistor array is supplied with a fifth data voltage of the firstcolor and turns on the fourth OLED electrically connected to the fifthtransistor array; and the sixth transistor array is supplied with asixth data voltage of the third color and turns on the sixth OLEDelectrically connected to the sixth transistor array.
 3. Theelectroluminescence display of claim 1, wherein: the first color is anyone of red or green, the second color is a different one of red orgreen, and the third color is blue.
 4. The electroluminescence displayof claim 1, wherein: the first transistor array is supplied with a firstdata voltage of the first color and turns on the first OLED electricallyconnected to the first transistor array; the second transistor array issupplied with a second data voltage of the second color and turns on thesecond OLED electrically connected to the second transistor array; thethird transistor array is supplied with a third data voltage of thethird color and turns on the third OLED electrically connected to thethird transistor array; the fourth transistor array is supplied with afourth data voltage of the first color and turns on the fourth OLEDelectrically connected to the fourth transistor array; the fifthtransistor array is supplied with a fifth data voltage of the thirdcolor and turns on the sixth OLED electrically connected to the fifthtransistor array; and the sixth transistor array is supplied with asixth data voltage of the second color and turns on the fifth OLEDelectrically connected to the sixth transistor array.
 5. Theelectroluminescence display of claim 1, wherein: the first color isblue; the second color is any one of red or green, and the third coloris a different one of red or green.
 6. The electroluminescence displayof claim 1, wherein: the OLEDs include a first electrode, a secondelectrode, and an organic compound layer disposed between the firstelectrode and the second electrode; the first electrode of each of thefirst OLED and the fourth OLED has a triangular shape; the firstelectrode of each of the second OLED and the fifth OLED has a triangularshape the first electrode of each of the third OLED and the sixth OLEDhas a rectangular shape; each of the first electrode of the first OLEDand the first electrode of the second OLED has a plane shape that issymmetrical to each other with respect to a reference line extended inthe first direction; and each of the first electrode of the fourth OLEDand the first electrode of the fifth OLED has a plane shape that issymmetrical to each other with respect to the reference line.
 7. Theelectroluminescence display of claim 6, wherein: a plane shape of thefirst electrode of each of the first OLED and the fourth OLED has afirst side parallel to the first direction, a second side bent andextended from one end of the first side, and a third side bent andextended from another end of the first side and connected to the secondside; a plane shape of the first electrode of each of the second OLEDand the fifth OLED has a fourth side parallel to the first direction, afifth side bent and extended from one end of the fourth side, and asixth side bent and extended from another end of the fourth side andconnected to the fifth side; and a plane shape of the first electrode ofeach of the third OLED and the sixth OLED has a seventh side forming anacute angle with a virtual line extended in the second direction, aneighth side bent and extended from one end of the seventh side andsymmetrical to the seventh side up and down with respect to a virtualline extended in the first direction, a ninth side bent and extendedfrom another end of the seventh side and parallel to the eighth side,and a tenth side connected to the eighth side and the ninth side andparallel to the seventh side.
 8. The electroluminescence display ofclaim 7, wherein: the third side and the seventh side are disposed inparallel; and the sixth side and the eighth side are disposed inparallel.
 9. The electroluminescence display of claim 6, wherein: thefirst electrode of the first OLED is formed on the first transistorarray and the second transistor array; the first electrode of the secondOLED is formed on the first transistor array and the second transistorarray; the first electrode of the third OLED is formed on the secondtransistor array, the third transistor array, and the fourth transistorarray; the first electrode of the fourth OLED is formed on the fourthtransistor array and the fifth transistor array; the first electrode ofthe fifth OLED is formed on the fourth transistor array and the fifthtransistor array; and the first electrode of the sixth OLED is formed onthe fifth transistor array, the sixth transistor array, and the firsttransistor array.
 10. The electroluminescence display of claim 6,wherein: the first electrode of the first OLED is connected to the firsttransistor array through a first connection part; the first electrode ofthe second OLED is connected to the second transistor array through asecond connection part; the first electrode of the third OLED isconnected to the third transistor array through a third connection part;the first electrode of the fourth OLED is connected to the fifthtransistor array through a fourth connection part; the first electrodeof the fifth OLED is connected to the fourth transistor array through afifth connection part; the first electrode of the sixth OLED isconnected to the first transistor array through a sixth connection part;the second connection part is extended between the first electrode ofthe first OLED and the first electrode of the third OLED; and the fifthconnection part is extended between the first electrode of the thirdOLED and the first electrode of the fourth OLED.
 11. Theelectroluminescence display of claim 6, wherein at least one of thefirst electrodes has a shape with at least one chamfered side edge. 12.The electroluminescence display of claim 1, wherein the transistorarrays of A type are adjacent to one side of the reference line,respectively; and wherein the transistor arrays of B type are adjacentto the other side of the reference line, respectively.
 13. Anelectroluminescence display, comprising: transistor arrays arranged in afirst direction and a second direction intersecting the first direction;organic light-emitting diodes (OLEDs) electrically connected to thetransistor arrays to emit light of a first color, a second color, and athird color; and power source lines to apply power source voltages tothe transistor arrays, wherein the transistor arrays are disposedadjacently in the first direction and share one power source linepositioned between the transistor arrays, and wherein the transistorarrays include a transistor array of an A type and a transistor array ofa B type symmetrical to each other with reference to a reference lineextended in the second direction, wherein the OLEDs electricallyconnected to the transistor array of the A type emit one of the firstcolor, the second color, or the third color, wherein the OLEDselectrically connected to the transistor array of the B type emit one ofthe first color, the second color, or the third color that is differentfrom the color emitted by the OLEDs connected to the transistor array ofthe A type, wherein the OLEDs are arranged in an order of a first OLEDof the first color, a second OLED of the second color, a third OLED ofthe third color, a fourth OLED of the first color, a fifth OLED of thesecond color, and a sixth OLED of the third color, wherein thetransistor arrays are arranged in an order of a first transistor arrayof the A type, a second transistor array of the B type, a thirdtransistor array of the A type, a fourth transistor array of the B type,a fifth transistor array of the A type, and a sixth transistor array ofthe B type in the first direction, and wherein: the OLEDs include afirst electrode, a second electrode, and an organic compound layerdisposed between the first electrode and the second electrode; the firstelectrode of each of the first OLED and the fourth OLED has a triangularshape; the first electrode of each of the second OLED and the fifth OLEDhas a triangular shape; the first electrode of each of the third OLEDand the sixth OLED has a rectangular shape; each of the first electrodeof the first OLED and the first electrode of the second OLED has a planeshape that is symmetrical to each other with respect to a reference lineextended in the first direction; and each of the first electrode of thefourth OLED and the first electrode of the fifth OLED has a plane shapethat is symmetrical to each other with respect to the reference line.14. The electroluminescence display of claim 13, wherein the first OLEDis electrically connected to the first transistor array, the second OLEDis electrically connected to the second transistor array, and the thirdOLED is electrically connected to the third transistor array; andwherein the fourth OLED is electrically connected to the fifthtransistor array, the fifth OLED is electrically connected to the fourthtransistor array, and the sixth OLED is electrically connected to thesixth transistor array.
 15. The electroluminescence display of claim 13,wherein the first OLED is electrically connected to the first transistorarray, the second OLED is electrically connected to the secondtransistor array, and the third OLED is electrically connected to thethird transistor array; and wherein the fourth OLED is electricallyconnected to the fourth transistor array, the fifth OLED is electricallyconnected to the sixth transistor array, and the sixth OLED iselectrically connected to the fifth transistor array.